When you try to sign in from a device, program, or location that we haven't seen you use before, we may ask you to enter an Account Key (sent to your recovery phone or email) to verify that it's really you.

If the verification information displayed for your account is out-of-date, go to the "Problems using the Sign-in Helper" section of this article and see "My account recovery information is incorrect."

If you're locked out because someone else learned and changed your password, use the Sign-in Helper to get back in. Lock your account using a new strong password, then review your account settings for changes and undo any that you didn't make.

Problems using Sign-in Helper

We take your privacy and security very seriously, and only let you reclaim an account if you prove you're the rightful owner. When you register for an account, it's up to you to provide valid recovery info that proves ownership. The best way to safeguard your account access is to update your recovery info whenever your mobile phone number or email address changes.

We need valid security and recovery info to protect your account. If you weren't successful with Yahoo Sign-in Helper or the other options above, you likely won't be able to recover your account. If you remember your sign-in information later, you can come back and try again.